Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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The Synthesis of Pyrrolidone-N-sulfonyl Chloride and Its Catalytic Effect in Anionic Polymerization of Pyrrolidone

Pyrrolidone-N-sulfonyl Chloride의 합성 및 Pyrrolidone-N-sulfonyl Chloride / KOH 촉매작용에 의한 Pyrrolidone의 음이온 중합

  • W.J. Chung (Department of Chemistry, Korea Advanced Institute of Science) ;
  • S.K. Choi (Department of Chemistry, Korea Advanced Institute of Science)
  • Published : 1979.12.30
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Abstract

The synthesis of pyrrolidone-N-sulfonyl chloride has been carried out by the reaction of pyrrolidone with sulfuryl chloride in benzene. It was attempted to study the catalytic effect of pyrroldone-N-sulfonyl chloride as an initiator for anionic polymerization of pyrrolidone. It was found that as a concentration of initiator decreased, inherent viscosity of the resulting polymer increased up to 1.8 dl/g. The highest rate of polymerization and equilibrium conversion was observed when mole ratio of PNSC to KOH was 0.25. In general, the observed value of polymerization and equilibrium conversion in circumstances using PNSC/KOH catalysis system were higher than using $CO_2$/KOH catalysis system.

Pyrrolidone의 음이온중합의 새로운 개시제로서 Pyrrolidone-N-sulfonyl chloride를 합성하고, 이 개시제에 의한 중합반응기구를 제안하였으며, 중합결과를 분석 고찰하여 다른 개시제의 경우와 비교하였다. Pyrrolidone-N-sulfonyl chloride의 농도를 작게할 수록 합성되는 고분자의 점도가 증가함을 관찰하였으며, 개시제의 KOH에 대한 비율이 0.25일때 중합속도 및 중합수율이 가장 큰 결과를 얻었다. PNSC/KOH 촉매작용에 의한 pyrrolidone의 음이온 중합은, $CO_2$/KOH 촉매작용의 경우에 비하여 일반적으로 중합속도가 빠르고, 중합수율도 높았다.

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